LAYER_ADDED
action.LAYER_MODIFIED
action.LAYER_REMOVED
action.LINK_ADDED
action.LINK_ADDED
action.LINK_DOWN
action.LINK_DOWN
action.LINK_MODIFIED
action.LINK_MODIFIED
action.LINK_REMOVED
action.LINK_REMOVED
action.LINK_UP
action.LINK_UP
action.NetPlan
from a .n2p
file.NetPlan
from an input stream.long
primitives.